APR Performance Carbon Fibre GT-250 Swan Neck Wing 67"This item is made to order, normal lead time is 2 3 weeks. Contact sales team at sales@aprperformance. com or 909 590 3796 for additional info. By purchasing, I agree to the terms outlined here All GT Series wings feature an all new, low drag, aerodynamic 2D designed airfoil shape. The "2D" design allows the wing to maintain a consistent level of downforce across its entire span. Computational Fluid Dynamics (CFD) analysis was performed on this wing